Don't jump in and start replacing parts until problem is isloated. As the Guys have suggested, get good flow from the tank at the pump 1st. Inside the tank is where many problems lie. Fuel line from it to the pump, next. Wait on replacing filter till you get good flow. Now the pump. Are all lines in good shape and not leaking, even, air? If good, check pump output. Should give a good stream when cranking. Last, the carb. Remove bowl, if easily done, or carb to clean bowl, needle, seat and jets. You could start here, but if the flow to the carb is not right, then you'll be back at step #1. Reassemble with new gaskets, in-line shut off and filter.
Etbrown44
Member
- Joined
- Mar 7, 2023
- Threads
- 1
- Messages
- 25
Once you verify fuel flow, if it still not right, I would invest in a $15 amazon carb. I know some guys here don't like them, but I've not had a single one fail in the past 15 years. No doubt you might sometimes get a bad one. Still worth a try.
Last edited:
50\50% for the cheap carbs for me. At least, a cheap trouble shooting tool. I also will use them for the internal parts to rebuild OEM ones.
Just cuz the fuel lines look good, doesn't mean they are. They can close up internally just like your arteries.
Just cuz the fuel lines look good, doesn't mean they are. They can close up internally just like your arteries.
Briggs v-twin known for dropping push rods, not an expensive fix, but a pain.
outdoorpowermike
Member
- Joined
- Nov 10, 2024
- Threads
- 0
- Messages
- 10
Test fuel pump with vac gauge/fuel pressure gauge, remove inlet fuel line and outlet fuel line from fuel pump, should have 1-11/2 psi coming out of pump and about the same going into pump but negative reading. If good check vav hose going to fuel pump is not cracked and tight. If these are good check fuel hose coming from tank has good flow, if very little flow take gas cap off and see if flow changes, if still slow clean nipple at tank if gas tank is located under the hood. Look for grass or stuff clogging nipple. If no fuel filter is inline carb will get clogged at inlet and at main jet.